How effective is America’s deterrence?

https://www.defensenews.com/opinion/commentary/2021/01/27/how-effective-is-americas-deterrence/

Deterrence is not a static policy that can be instituted and remain effective; it needs to be maintained and updated periodically to cope with evolving conditions.

https://peterholland765.wordpress.com/2021/01/27/how-effective-is-americas-deterrence/